WO2017159648A1

WO2017159648A1 - Submarine device, submarine cable system, method for controlling submarine device, and storage medium for storing program for submarine device

Info

Publication number: WO2017159648A1
Application number: PCT/JP2017/010072
Authority: WO
Inventors: 成浩新井
Original assignee: 日本電気株式会社
Priority date: 2016-03-18
Filing date: 2017-03-14
Publication date: 2017-09-21
Also published as: CN108781093A; JPWO2017159648A1; EP3432481A1; JP6614333B2; US20190074690A1; EP3432481A4

Abstract

[Problem] To provide a submarine device capable of obtaining a constant voltage despite fluctuations in power supply load without making the device large or complicated, as well as a submarine cable system, a method for controlling the submarine device, and a program for the submarine device. [Solution] Provided is a submarine device that is characterized by being provided with: drive voltage generation means for generating voltages for driving connected loads according to current flows; a detection means for detecting whether or not each of the loads is connected to the submarine device; and a control means that performs control such that currents flow or do not flow in the drive voltage generation means according to a detection result of the detection means, wherein the submarine device is characterized in that the drive voltage generation means are prepared according to the respective loads, the detection means detects whether or not each of the loads is connected, and the control means performs control so that a current flows or does not flow in each of the drive voltage generation means according to each of the loads according to a detection result from the detection means as to whether each of the loads is connected.

Description

Submarine equipment, submarine cable system, submarine equipment control method, and storage medium storing submarine equipment program

The present invention relates to a submarine device, a submarine cable system, a submarine device control method, and a submarine device program.

There is a submarine cable system in which terminal devices installed on land and submarine equipment installed on the seabed are connected to each other by cables. Cables are laid over long distances, and the total length can be, for example, thousands of kilometers. It is difficult to apply a constant voltage to a submarine device from a land power supply device installed on land via a cable over a long distance. In view of this, the submarine cable system employs a power feeding system that supplies a constant current (hereinafter referred to as “system current”) to the submarine equipment via a power cable.

FIG. 5 is a block diagram showing an example of the internal configuration of the submarine device 10 related to the present invention. The undersea device 10 includes a voltage converter 11, n Zener diodes 12-1 to 12-n, n DC (Direct Current) -DC converters 13-1 to 13-n, and n sensors 14 -1 to 14-n. Here, in the voltage converter 11, n Zener diodes 12 are connected to the primary side, and a DC-DC converter 13 is connected to the secondary side. In the voltage converter 11, the primary side and the secondary side are electrically insulated. Here, the n Zener diodes 12 are included in a primary-side power supply circuit (not shown) in the voltage converter 11.

The undersea device 10 obtains a constant voltage by using a breakdown voltage due to a Zener effect generated when a voltage is applied between the anode and the cathode of the Zener diode 12 provided in the power supply circuit. Here, the product obtained by multiplying the constant voltage and the system current flowing through the n Zener diodes 12 corresponds to the power consumption of the submarine device 10, and therefore, the power supply circuit has a number corresponding to the power consumption of the submarine device 10. A zener diode 12 is included connected in series. The DC-DC converter 13 generates a voltage necessary for each component of the submarine device 10.

In order to use the submarine cable system for observation systems such as seismic monitoring, resource monitoring, harbor monitoring, etc., various sensors 14-1 to 14-n of the submarine equipment 10 as shown in FIG. May be installed. However, the sensor mounted in such a case often consumes more power than the existing components of the submarine device 10. In addition, a sensor mounted in such a case is required to have a function of starting and stopping operation and a function of changing various operation settings according to remote control.

Patent Document 1 describes a submarine transmission system that applies a reverse bias voltage to a predetermined number of Zener diodes.

Patent Document 2 describes a balanced DC constant current input / DC constant current distribution output device that compensates for fluctuations in an external load with fluctuations in power consumption of a constant resistance circuit.

JP 2004-208287 A JP 2011-135715 A

The submarine cable system including the submarine equipment 10 is required to have flexibility to meet the expansion demand for adding sensors. Therefore, in the submarine cable system deployed in such an observation system, when the power load on the secondary side of the voltage converter 11 in the submarine equipment 10 changes due to the start, stop, extension, etc. of the sensor. In addition, the system current flowing through the zener diodes 12-1 to 12-n on the primary side changes. Therefore, there arises a problem that the constant voltage obtained by the Zener effect cannot be maintained. Specifically, for example, when the power supply load on the secondary side of the voltage converter 11 decreases, the current flowing on the primary side of the voltage converter 11 increases. As a result, the current flowing through the Zener diodes 12-1 to 12-n decreases. When the current flowing through the Zener diodes 12-1 to 12-n becomes less than a predetermined Zener current, the constant voltage obtained by the Zener effect cannot be maintained.

For such a problem, a coping method of fixing the power load in the submarine device 10 can be considered. However, this coping method impairs the expandability and flexibility of the submarine cable system, making it difficult to use the submarine cable system for various observation purposes.

In addition, for such a problem, a countermeasure method is conceivable in which the submarine device 10 is configured in advance so that the maximum power supply capacity in anticipation of the future expansion and expansion of sensors can be applied. However, in this coping method, it is necessary to provide the submarine device 10 with an electronic load in advance, and the electronic load must be operated at a light load until the sensor is added or expanded. It will be consumed. Further, in this coping method, the components in the submarine device 10 must be operated in an environment where the temperature has increased due to a light load operation of an electronic load or the like. Therefore, in this coping method, the problem of the increase in the power consumption in the submarine equipment 10 and the fall of long-term reliability of the component of the subsea equipment 10 arises. Furthermore, in this coping method, it is necessary to provide the submarine device 10 with a complicated function for suppressing fluctuations in the power load of the submarine device 10 due to changes in the number of electronic loads and sensors. Or complicated. Therefore, in the manufacturing process, the inspection process, and the seabed laying process of the submarine equipment 10, work efficiency is lowered.

The submarine transmission system described in Patent Document 1 cannot flexibly cope with fluctuations in power consumption in the submarine transmission system because the number of Zener diodes to which the reverse bias voltage is applied is fixed. Therefore, the submarine transmission system described in Patent Document 1 cannot obtain a constant voltage when the power load varies.

Further, the balanced DC constant current input / DC constant current distribution output device described in Patent Document 2 needs to include a circuit including a constant resistance circuit in order to prevent a change in passive power on the input side. Therefore, the balanced DC constant current input / DC constant current distribution output device described in Patent Document 2 is increased in size to obtain a constant voltage.

The present invention has been made in view of the above problems, and can provide a submarine device, a submarine cable system, and a submarine device that can obtain a constant voltage regardless of fluctuations in a power load without increasing the size and complexity of the device. It is an object to provide a control method and a program for submarine equipment.

In order to achieve the above object, a submarine device according to an aspect of the present invention includes a driving voltage generation unit configured to generate a voltage for driving a connected load in response to a current flowing, and each of the loads. Detecting means for detecting whether or not the submarine device is connected to the submarine device, and control means for controlling the current to flow or not to flow to the drive voltage generating means according to the detection result by the detecting means. The drive voltage generation means is prepared according to the load, the detection means detects whether or not each load is connected, and the control means detects each load by the detection means. In accordance with the detection result of whether or not is connected, control is performed so that the current flows or does not flow in each drive voltage generation means corresponding to each load.

In order to achieve the above object, a control method for a submarine device according to an aspect of the present invention includes a method for controlling the load according to a current flowing in a drive voltage generation unit prepared in accordance with a connected load. Generate voltages for driving each, detect whether each load is connected to the submarine equipment, and depending on the detection result whether each load is connected, each load according to each load Control is performed so that the current flows or does not flow in the drive voltage generation means.

In order to achieve the above object, a program for a submarine device according to an aspect of the present invention is based on the fact that a current flows to a drive voltage generation unit prepared in accordance with a load connected to a computer of a submarine device. And a process for generating a voltage for driving each of the loads, a process for detecting whether or not each load is connected to the submarine equipment, and a detection result of whether or not each load is connected. Accordingly, a process for controlling the current to flow or not to flow to each drive voltage generation unit corresponding to each load is performed.

According to the present invention, a constant voltage can be obtained regardless of fluctuations in the power load without increasing the size and complexity of the device.

It is a block diagram which shows the example of an internal structure of the submarine apparatus in the 1st Embodiment of this invention. It is a flowchart which shows the operation example of the submarine apparatus in the 1st Embodiment of this invention. It is a block diagram which shows the structural example of the submarine apparatus in the 2nd Embodiment of this invention. It is a flowchart which shows the operation example of the submarine apparatus in the 2nd Embodiment of this invention. It is a block diagram which shows the example of an internal structure of the submarine apparatus relevant to this invention.

(First embodiment)
A first embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram illustrating a configuration example of a submarine device 100 in the present embodiment. In the example shown in FIG. 1, the undersea device 100 includes n Zener diode groups 140-1 to 140-n, a power load detection unit 180, and a switch switching control unit 190. Note that each of the n Zener diode groups 140-1 to 140-n is connected in series with each other. Further, each of the n Zener diode groups 140-1 to 140-n is configured by m ₁ to _mn Zener diodes that are connected in series with each other. Specifically, the Zener diode group 140-1 is constituted by Zener diodes 141-1 ~ _{141-m 1} each connected in series with each other. Further, the Zener diode group 140-2 is constituted by Zener diodes 141-1 ~ _{141-m 2} each connected in series with each other. The Zener diode group 140-n includes Zener diodes 141-1 to 141- _mn that are connected in series with each other.

Here, in the submarine device 100, the power cable 110 is arranged to be connected to the n Zener diode groups 140-1 to 140-n.

Further, each of the n voltage converters 150-1 to 150-n is arranged to be connected in parallel to each of the n Zener diode groups 140-1 to 140-n. Each of the n Zener diode groups 140-1 to 140-n is connected to the primary side of each of the n voltage converters 150-1 to 150-n.

Each of the n quantity changeover switches 120-1 to 120-n is in parallel with each of the n Zener diode groups 140-1 to 140-n and the n voltage converters 150-1 to 150-n. It is arranged to be connected to. Each of the n quantity changeover switches 120-1 to 120-n is connected to the primary side of each of the n voltage converters 150-1 to 150-n. Each of the n quantity changeover switches 120-1 to 120-n is connected to the switch changeover control unit 190 in a controllable manner.

Further, each of the n path changeover switches 130-1 to 130-n includes each of the n Zener diode groups 140-1 to 140-n and the n voltage converters 150-1 to 150-n. It arrange | positions between primary sides. Each of the n path selector switches 130-1 to 130-n is connected in series to each of the n Zener diode groups 140-1 to 140-n and the n voltage converters 150-1 to 150-n. Connected to. Further, each of the n path changeover switches 130-1 to 130-n is connected to the switch changeover control unit 190 in a controllable manner.

Further, each of the n DC-DC converters 160-1 to 160-n is arranged to be connected to the secondary side of each of the n voltage converters 150-1 to 150-n.

Also, each of the n power loads 170-1 to 170-n is arranged to be connected to each of the n DC-DC converters 160-1 to 160-n. Each of the n power loads 170-1 to 170-n is also connected to the power load detector 180.

Here, the n power loads 170-1 to 170-n may be arranged inside the submarine device 100 or may be arranged outside. In the example shown in FIG. 1, n power loads 170-1 to 170-n are arranged outside the submarine device 100.

In the following description, when there is no need to separately explain each of the n quantity changeover switches 120-1 to 120-n, the quantity changeover switches 120-1 to 120-n will be referred to as quantity changeover switches 120. Similarly, the path selector switches 130-1 to 130-n are referred to as a path selector switch 130. The Zener diode groups 140-1 to 140-n are referred to as a Zener diode group 140. The m Zener diodes 141-1 to 141 -m are referred to as Zener diodes 141. Voltage converters 150-1 to 150-n are referred to as voltage converter 150. The DC-DC converters 160-1 to 160-n are referred to as a DC-DC converter 160. The power loads 170-1 to 170-n are referred to as a power load 170.

The submarine device 100 is a device such as a submarine repeater constituting a submarine cable system. Here, in the undersea device 100, one Zener diode group 140 includes one quantity changeover switch 120, one path changeover switch 130, one voltage converter 150, one DC-DC converter 160, One power load 170 is associated. Specifically, for example, the Zener diode group 140-1 includes a quantity changeover switch 120-1, a path changeover switch 130-1, a voltage converter 150-1, a DC-DC converter 160-1, a power supply The load 170-1 is associated.

A constant current (also referred to as a system current) supplied from a land power supply device (not shown) installed on land is input to the submarine device 100 via the power cable 110.

The quantity changeover switch 120 transitions between an open state and a closed state according to the control of the switch changeover control unit 190.

The path changeover switch 130 transitions between an open state and a closed state according to the control of the switch changeover control unit 190. The path changeover switch 130 changes to the open state when the quantity changeover switch 120 changes to the closed state, and changes to the closed state when the quantity changeover switch 120-1 changes to the open state. Here, the quantity changeover switch 120 and the route changeover switch 130 will be described later.

System current flows through the Zener diode group 140 corresponding to the quantity changeover switch 120 in the open state and the path changeover switch 130 in the closed state. Then, a predetermined constant voltage is applied to the Zener diode group 140 through which the system current flows using the breakdown voltage due to the Zener effect. For example, when the quantity changeover switch 120-1 is open and the path changeover switch 130-1 is closed, a constant voltage is applied to the Zener diode group 140-1.

Here, according to the voltage required on the primary side of the voltage converter 150, the number of Zener diodes 141 constituting the Zener diode group 140 is determined. For example, the Zener diode group 140-1 includes three Zener diodes 141 each having a Zener voltage of 5V when a voltage of 15V is required on the primary side of the voltage converter 150-1.

The voltage converter 150 converts the voltage generated on the primary side, and applies the converted voltage to the secondary side. Specifically, when the quantity changeover switch 120 changes to the open state, the path changeover switch 130 changes to the closed state, and a system current flows through the Zener diode group 140, the voltage corresponding to the system current is changed to the voltage converter 150. Applied to the primary side. Then, the voltage is converted into a predetermined voltage and applied to the secondary side of the voltage converter 150. Then, power is supplied to the secondary side of the voltage converter 150. The voltage converter 150 is realized by, for example, a transformer system including a transformer.

The DC-DC converter 160 converts the voltage converted and applied by the voltage converter 150 into an appropriate voltage according to the power load 170. Then, the DC-DC converter 160 applies the converted voltage to the power load 170.

The power load 170 is attached to the submarine device 100 via an underwater connector (not shown) according to the purpose and application of the submarine cable system. In addition, the power load 170 is removed from the submarine device 100 as necessary. In addition, the installation of the power load 170 to the submarine device 100 and the removal of the power load 170 from the submarine device 100 can be performed according to the expansion or expansion demand of the submarine cable system after the submarine device 100 is installed on the seabed. It takes place underwater via an underwater connector. Here, the power load 170 is, for example, a sensor such as an accelerometer or a water pressure gauge.

The power load detection unit 180 detects that the power load 170 is attached to and removed from the undersea device 100 (detachment). When the power load detection unit 180 detects the attachment / detachment of the power load 170, the power load detection unit 180 notifies the switch switching control unit 190 that the power load 170 is attached or removed.

The switch switching control unit 190, when notified of the attachment / detachment of the power load 170 from the power load detection unit 180, controls the state of the quantity switching switch 120 and the path switching switch 130 based on the content of the notification. As a result, the Zener diode group 140 through which the system current flows is selected. Specifically, for example, when the power load 170-1 is attached to the submarine device 100, the switch switching control unit 190 controls the quantity switching switch 120-1 to transition to the open state, and the path switching switch 130 Control -1 to transition to the closed state. Then, since a system current flows through the Zener diode group 140-1, a constant voltage is applied to the Zener diode group 140-1. Accordingly, a voltage is applied to the primary side of the voltage converter 150-1. Then, electric power is supplied to the secondary side of the voltage converter 150-1. Further, for example, when the power load 170-1 is removed from the submarine device 100, the switch switching control unit 190 controls the quantity changeover switch 120-1 to transition to the closed state, and the path changeover switch 130-1 is changed. Control to transition to the open state. Then, since the system current does not flow through the Zener diode group 140-1, no constant voltage is applied to the Zener diode group 140-1. Therefore, no voltage is applied to the primary side of the voltage converter 150-1. Then, power is not supplied to the secondary side of the voltage converter 150-1. Therefore, the switch switching control unit 190 causes the system current to flow through the Zener diode group 140 in which the corresponding power load 170 is attached to the submarine device 100, and the Zener diode group in which the corresponding power load 170 is not attached to the submarine device 100. The state of the quantity changeover switch 120 and the path changeover switch 130 is controlled so that the system current does not flow through 140.

In addition, in order to select the Zener diode group 140 through which the system current flows, in addition to the state of the quantity changeover switch 120, the state of the path changeover switch 130 is controlled, so that the quantity changeover switch 120 has transitioned to the closed state. In this case, it is possible to prevent a part of the system current from flowing to the primary side of the voltage converter 150.

For example, when the Zener diode group 140 that passes the system current is selected only by controlling the state of the quantity changeover switch 120, the quantity changeover switch 120 transitions to the closed state when the power load 170 is removed. Even so, a part of the system current flows to the primary side of the voltage converter 150, and the voltage is applied to the secondary side of the voltage converter 150. Therefore, problems such as unnecessary power consumption and fluctuations in the system current flowing on the primary side arise.

On the other hand, according to the configuration in which the state of the path changeover switch 130 is controlled in addition to the state of the quantity changeover switch 120 in order to select the Zener diode group 140 through which the system current flows, as in this example, the power load 170 is When it is removed, it is possible to prevent the system current from flowing to the primary side of the voltage converter 150 corresponding to the power load 170, so that such a problem can be prevented from occurring.

Next, an operation example of the submarine device 100 will be described with reference to FIG.

FIG. 2 is a flowchart showing a process for supplying an appropriate system current to the submarine device 100.

(S101: Processing in the power load detection unit 180)
When the power load detection unit 180 detects that the power load 170 is removed from the submarine device 100 or the power load 170 is attached to the submarine device 100 (YES in S101), the detected content is switched. Notify the control unit 190. Then, the process proceeds to S102. When the power load detection unit 180 does not detect that the power load 170 has been removed from the submarine device 100 and that the power load 170 has been attached to the submarine device 100 (NO in S101), the submarine device. The process for supplying an appropriate system current to 100 is terminated. The process for supplying an appropriate system current to the submarine device 100 is performed at predetermined time intervals, for example.

(S102: Processing in Switch Change Control Unit 190)
The switch switching control unit 190 performs the following process when notified from the power load detection unit 180 that the power load 170 has been attached or removed (YES in S101).

When the power load detection unit 180 notifies that the power load 170 has been removed from the submarine device 100 (YES in S102), the switch switching control unit 190 proceeds to the process of S103. In addition, when the power switch 170 is notified that the power load 170 is attached to the submarine device 100 (NO in S102), the switch switching control unit 190 proceeds to S104.

(S103: Processing in Switch Change Control Unit 190)
When the power load detection unit 180 notifies that the power load 170 has been removed from the submarine device 100 (YES in S102), the switch switching control unit 190 performs control so that the quantity switching switch 120 is transitioned to the closed state. Then, the path changeover switch 130 is controlled to be changed to the open state. Then, it is possible to prevent a system current from flowing through the Zener diode group 140 corresponding to the removed power load 170. For example, when the power load 170-1 corresponding to the Zener diode group 140-1 is removed, the switch switching control unit 190 controls the quantity changeover switch 120-1 to transition to the closed state, and the path changeover switch 130 is changed. −1 is controlled to transition to the open state. Then, it is possible to prevent the system current from flowing through the Zener diode group 140-1.

Then, the process proceeds to S101.

(S104: Processing in Switch Change Control Unit 190)
When the power load detection unit 180 is notified that the power load 170 is attached to the submarine device 100 (NO in S102), the switch switching control unit 190 performs control so that the quantity changeover switch 120 is shifted to the open state. Then, the path changeover switch 130 is controlled to transition to the closed state. Then, the system current can be made to flow through the Zener diode group 140 corresponding to the attached power load 170. For example, when the power load 170-1 corresponding to the Zener diode group 140-1 is attached, the switch switching control unit 190 controls the quantity changeover switch 120-1 to transition to the open state, and the path changeover switch Control 130-1 to transition to the closed state. Then, a system current can be made to flow through the Zener diode group 140-1.

(S105: Processing in Voltage Converter 150)
The voltage converter 150 converts the constant voltage applied to the primary side using the Zener diode group 140 and applies the converted voltage to the secondary side of the converted voltage.

(S106: Processing in DC-DC Converter 160)
The DC-DC converter 160 converts the voltage applied by the voltage converter 150 into an appropriate voltage corresponding to the power load 170. Then, the DC-DC converter 160 applies the converted voltage to the power load 170.

As described above, in the submarine device 100 according to the present embodiment, when the power load 170 is attached, the switch switching control unit 190 is configured so that the system current flows through the Zener diode group 140 corresponding to the power load 170. The quantity changeover switch 120 and the path changeover switch 130 are controlled. Further, in the submarine device 100, when the power load 170 is removed from the submarine device 100, the switch switching control unit 190 switches the quantity so that the system current does not flow through the Zener diode group 140 corresponding to the power load 170. The switch 120 and the path changeover switch 130 are controlled. That is, in the submarine device 100, the switch switching control unit 190 appropriately changes the Zener diode group 140 through which the system current flows according to the attachment / detachment of the power load 170 (change in power consumption of the submarine device 100). With such a configuration, fluctuations in the system current due to the attachment / detachment of the power load 170 can be prevented. Therefore, application of a constant voltage to each Zener diode group 140 can be maintained. Further, the submarine device 100 does not need to include a circuit including a constant resistance circuit for preventing fluctuations in the system current due to the attachment / detachment of the power load 170.

Therefore, according to the present embodiment, a constant voltage can be obtained regardless of fluctuations in the power load without increasing the size and complexity of the device.

(Second Embodiment)
A second embodiment of the present invention will be described with reference to the drawings.

FIG. 3 is a block diagram showing a configuration example of the submarine device 200 in the present embodiment. In the example illustrated in FIG. 3, the submarine device 200 includes a drive voltage generation unit 210, a detection unit 220, and a control unit 230.

Here, the drive voltage generation unit 210 corresponds to, for example, the Zener diode group 140 in the first embodiment of the present invention shown in FIG. The detection unit 220 corresponds to, for example, the power load detection unit 180 in the first embodiment of the present invention illustrated in FIG. The control unit 230 corresponds to, for example, the switch switching control unit 190 in the first embodiment of the present invention illustrated in FIG.

The drive voltage generator 210 generates a voltage for driving the connected load in response to the current flowing.

The detection unit 220 detects whether each of the loads is connected to the submarine device 200.

The control unit 230 performs control so that a current flows or does not flow in the drive voltage generation unit 210 according to the detection result of the detection unit 220.

The drive voltage generation unit 210 is prepared for each connected load. Moreover, the detection part 220 each detects whether each load is connected. The control unit 230 may or may not allow current to flow to each drive voltage generation unit 210 corresponding to each load according to the detection result of whether or not each load is connected by the detection unit 220. Control.

Next, an operation example of the submarine device 200 will be described with reference to FIG.

(S201: Processing in the detection unit 220)
The detection unit 220 detects whether or not each load is connected.

(S202: Processing in the control unit 230)
The control unit 230 performs control so that a current flows or does not flow in each drive voltage generation unit 210 corresponding to each load according to a detection result of whether or not each load is connected by the detection unit 220. .

According to the present embodiment, the detection unit 220 detects whether or not each load to be driven is connected to the submarine device 200 based on the voltage generated by each drive voltage generation unit 210. The control unit 230 may or may not allow current to flow to each drive voltage generation unit 210 corresponding to each load according to the detection result of whether or not each load is connected by the detection unit 220. Control. With such a configuration, it is possible to prevent fluctuations in constant current due to load connection and removal. Further, the submarine device 200 does not need to include a circuit including a constant resistance circuit for preventing fluctuations in system current due to connection and removal of a load.

Therefore, also in this embodiment, the same effect as that of the first embodiment of the present invention can be achieved.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and further modifications and substitutions are possible without departing from the basic technical idea of the present invention. You can make adjustments. Moreover, you may implement combining each embodiment suitably.

It should be noted that the disclosures of the above patent documents are incorporated herein by reference. Within the scope of the entire disclosure (including claims) of the present invention, the embodiment can be changed and adjusted based on the basic technical concept. Various combinations and selections of various disclosed elements are possible within the scope of the claims of the present invention. That is, the present invention of course includes various variations and modifications that can be made by those skilled in the art according to the entire disclosure including the claims and the technical idea.

The present invention has been described above with reference to the embodiments, but the present invention is not limited to the above embodiments. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the present invention.

This application claims priority based on Japanese Patent Application No. 2016-055019 filed on Mar. 18, 2016, the entire disclosure of which is incorporated herein.

10 Submarine equipment 11 Voltage converters 12-1 to 12-n Zener diode 13 DC-DC converters 14-1 to 14-n Sensor 100 Submarine equipment 110 Power cables 120-1 to 120-n Quantity changeover switches 130-1 to 130 -N path changeover switches 140-1 to 140-n Zener diode groups 141-1 to 141-m Zener diodes 150-1 to 150-n Voltage converters 160-1 to 160-n DC-DC converters 170-1 to 170 -N Power load 180 Power load detection unit 190 Switch switching control unit 200 Submarine equipment 210 Drive voltage generation unit 220 Detection unit 230 Control unit

Claims

Drive voltage generating means for generating a voltage for driving the connected load in response to the current flowing;
Detecting means for detecting whether each of the loads is connected to the submarine equipment;
Control means for controlling the current to flow in the drive voltage generation means or not to flow according to the detection result by the detection means,
The drive voltage generation means is prepared according to the load,
The detection means detects whether or not each load is connected,
The control means controls the current to flow or not flow to each drive voltage generation means corresponding to each load according to a detection result of whether or not each load is connected by the detection means. Submarine equipment characterized by that.
Provided according to each of the driving voltage generating means, each of which includes a voltage converting means for inputting the voltage generated by the corresponding driving voltage generating means, transforming the input voltage and applying it to the load side,
2. The seabed according to claim 1, wherein when the control means controls the current to flow to the corresponding drive voltage generation means, the control is performed so that the voltage is input to the voltage transformation means. machine.
The control means, when the detection means detects that the load is connected, a current flows through the drive voltage generation means corresponding to the load, and the transformation means corresponding to the drive voltage generation means The submarine device according to claim 2, wherein the voltage is controlled to be input to the submarine device.
The control means, when the detection means detects that the load is not connected, current does not flow to the drive voltage generation means corresponding to the load, and the transformer corresponding to the drive voltage generation means. It controls so that the said voltage may not be input into a means. The submarine apparatus of Claim 2 or Claim 3 characterized by the above-mentioned.
The submarine device according to any one of claims 1 to 4, wherein the drive voltage generation unit includes a number of Zener diodes corresponding to the load.
Submarine equipment according to any one of claims 1 to 5,
A submarine cable system comprising: a power supply device that supplies the current to the submarine equipment.
Drive voltage generation means prepared according to the connected load, in response to the current flowing, to generate a voltage for driving each of the loads,
Detect whether each load is connected to the submarine equipment,
Control of submarine equipment characterized in that control is performed so that the current flows or does not flow to each drive voltage generation means corresponding to each load according to the detection result of whether or not each load is connected. Method.
To the submarine equipment computer,
A process for generating a voltage for driving each of the loads in response to the current flowing in the drive voltage generation means prepared according to the connected load;
Processing for detecting whether each load is connected to the submarine device; and
A submarine device for executing a process for controlling the current to flow or not to flow to each drive voltage generation unit corresponding to each load according to a detection result of whether or not each load is connected. A storage medium that stores the program.